Dyas shelton



D. SHELTON.

VEHICLE BRAKE.

(ModeL) No. 264,201. Patented Sept;12, 1882.

i1 I I UNITED STATES PATENT OFFICE.

DYAS SHELTON, OF SANTA ROSA, CALIFORNIA.

VEHICLE-BRAKE.

SPECIFICATION forming part of Letters Patent No. 264,201, datedSeptember 12, 1882.

Application filed June 19, 1882. (ModeL) To all whomt't may concern Beit known that I, DYAS SHELTON, a citizen of the United States ofAmerica, residing at Santa Rosa, in the county of Souoma and State ofCalifornia, havein vented certain new and useful Improvements inVehicle-Brakes, of which the following is a specification, referencebeing had therein to the accompanying drawings.

My invention relates to vehicle-brakes; and it consists in parts whichwill be hereinafter described, and pointed out in the claim. Theelements I employ are a transverse roller-bar having rightangledprojections extending downward. On the end of each projection, extendingoutward on-a parallel line with the bar, is an arm having a series ofdepressions on its rear side. These depressions present a flat verticalsurface. The shoe consists in a flat vertical back, having two wingsformed thereon that project forward and incline inward. To the back ofthe shoe is riveted a strip provided with a transverse slot runningthrough. The strip is also provided with a threaded slot in its back,which passes inward at right angles from the transverse slot, the twoslots thereby communicating. The arm of the rollerbar fits into thetransverse slot, and is secured thereto by means of a threaded set-screwthat works in the rear threaded slot of the strip, the point of theset-screw being flat, so as to correspond with the flat face of thedepressions in the arm. The flat point of the setscrew and smooth faceof the depressions with which said point may be placed in contactrigidly unite the block to the arm. By loosening the set-screw the blockis permitted to slide freely on the arm. The point of the setscrew canengage and be fixed in any of the depressions, and the block therebyrendered adjustable laterally on the arm.

The object of my invention is to produce a simple and substantial brake,and at the same time render it an easy matter to adjust the block andshoe to the variable position of the tire caused by dishing the Wheel.'It is a wellknown fact that various causes conspire to dish avehicle-wheel, the principle cause being tiresetting. The necessity,therefore, for a simple and reliable block with easy means of adjustment is quite apparent.

The brake-blocks analogous to mine with which I am familiar are securedto the arms on the ends of the bar by means of a shoulder and nut, thearms each having an inner shoulder for the blocks to rest against, and athread on the end for the reception of a nut, the nut pressing the blockagainst the shoulder, and thereby securing it. I have found that such amanner of attaching the block to the arm is unreliable, and that theinstant the nut works loose the top of the block will turn inwardly andcause the top of the shoe to come in contact with the tire and wear atthat point, to the exclusion of the other parts on the face of the shoe,and that at times the block and shoe will turn completely over. Iobviate these defects by the parts illustrated in the accompanyingdrawings, in which- Figure 1 is a perspective view of a roller-bar,block, shoe, and connecting means. Fig. 2 is a plan view of the devicesecured to the arm on the end of the roller-bar. Fig. 3 is a sectionthrough the line :20 a; of Fig. 4, and Fig. 4 is a section through theline y y of Fig. 2.

The letter A in the drawings represents the roller-bar, and A are theright-angled projections thereon. A are the horizontal arms on theprojections A.

B is the brake-shoe, and O O are the wings or clamps aiding to securethe same.

D is the back piece or block proper, to which the clamps (l O arerigidly united.

D is the strip, riveted to D. D is the crossslot therein, and D is thethreaded rear slot.

E is the set-screw, having a threaded shank that works in rear slot, D

E E are depressions in arm A By means of the depressions E E and thethreaded setscrew E, working in the threaded slot D the block providedwith the shoe is rendered adjustable laterally on the arm A F is a screwthat passes through a slot in the clamp (J, and thence into the side ofthe shoe to aid in firmly uniting the shoe to the clamps, and Gindicates the face of the shoe.

In the drawings 1 have shown a shoe flaring outwardly from the ends ofthe clamps. It is obvious that the face of the shoe may be given anyother suitable form without departing from the principle of myinvention.

Having thus described my invention and set forth its advantages, I claimas new and united and operated in the manner and for the desire tosecure by Letters Patent purposes specified. 10

In a vehicle-brake, the combination of the In testimony whereof I affixmy signature in arm A provided with depressions E, the back presence oftwo witnesses.

5 piece D, clamps G 0, block D, provided with DYAS SHELTONQ smooths1ot 1) ,and intersecting threaded open- Witnesses: ing 1) for thereception of set-screw E, the ALBERT G. SHANNON,

block B, and screw F, the several parts being I). O. ALLEN.

